Question

Find the unknown side of the triangle below.

Answer 1

Answer:

x = 9

Step-by-step explanation:

We know that the hypotenuse is 15(c) and one side is 12(a or b) so we can solve by using the Pythagoras theorem which is:

$a^{2} + b^{2} = c^{2}$

We know c is 15 and b is 12:

$a^{2} + 144 = 225$

Let’s solve:

$a^{2} = 225 - 144$

$a = 9$ Or $x = 9$